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7003 Aluminum vs. Nickel 825

7003 aluminum belongs to the aluminum alloys classification, while nickel 825 belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 7003 aluminum and the bottom bar is nickel 825.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 11
34
Fatigue Strength, MPa 130 to 150
190
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 26
78
Shear Strength, MPa 210 to 230
430
Tensile Strength: Ultimate (UTS), MPa 350 to 390
650
Tensile Strength: Yield (Proof), MPa 300 to 310
260

Thermal Properties

Latent Heat of Fusion, J/g 380
300
Maximum Temperature: Mechanical, °C 200
980
Melting Completion (Liquidus), °C 630
1400
Melting Onset (Solidus), °C 510
1370
Specific Heat Capacity, J/kg-K 870
460
Thermal Conductivity, W/m-K 150
11
Thermal Expansion, µm/m-K 24
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 110
1.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
41
Density, g/cm3 2.9
8.2
Embodied Carbon, kg CO2/kg material 8.1
7.2
Embodied Energy, MJ/kg 150
100
Embodied Water, L/kg 1140
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 41
180
Resilience: Unit (Modulus of Resilience), kJ/m3 630 to 710
170
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 33 to 37
22
Strength to Weight: Bending, points 37 to 40
20
Thermal Diffusivity, mm2/s 59
2.9
Thermal Shock Resistance, points 15 to 17
17

Alloy Composition

Aluminum (Al), % 90.6 to 94.5
0 to 0.2
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.2
19.5 to 23.5
Copper (Cu), % 0 to 0.2
1.5 to 3.0
Iron (Fe), % 0 to 0.35
22 to 37.9
Magnesium (Mg), % 0.5 to 1.0
0
Manganese (Mn), % 0 to 0.3
0 to 1.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
38 to 46
Silicon (Si), % 0 to 0.3
0 to 0.050
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0.6 to 1.2
Zinc (Zn), % 5.0 to 6.5
0
Zirconium (Zr), % 0.050 to 0.25
0
Residuals, % 0 to 0.15
0